2164959 has 6 divisors (see below), whose sum is σ = 3127176. Its totient is φ = 1443300.

The previous prime is 2164927. The next prime is 2164963. The reversal of 2164959 is 9594612.

2164959 is a `hidden beast` number, since 2 + 1 + 649 + 5 + 9 = 666.

It is not a de Polignac number, because 2164959 - 2⁵ = 2164927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120267 + ... + 120284.

It is an arithmetic number, because the mean of its divisors is an integer number (521196).

2^2164959 is an apocalyptic number.

2164959 is a deficient number, since it is larger than the sum of its proper divisors (962217).

2164959 is a wasteful number, since it uses less digits than its factorization.

2164959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240557 (or 240554 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 2164959 is about 1471.3799645231. The cubic root of 2164959 is about 129.3649302532.

It can be divided in two parts, 21 and 64959, that added together give a triangular number (64980 = T₃₆₀).

The spelling of 2164959 in words is "two million, one hundred sixty-four thousand, nine hundred fifty-nine".